Hey guys, So I am heading to Australia for five months and am loathe to go there and pick up some crap phone to use locally there for five months. Unfortunately, there is absolutely no way I am paying to use the iPhone at AT&T's rates for international calling and data usage for five months. (The fees are obscene) So, I've been doing a lot of research and need some thoughts and help on what I've come up with as a solution, outlined below: 1. Crack/Jailbreak/Unlock my phone This would let me pop in a pay-as-you-go sim card in Australia, keeping my rates low, while still letting me use iPhone functionality in Wi-Fi areas (although 3G won't work). So that would solve the local calling / texting problem. 2. Get a Skype subscription or equivalent I would get skype and a SkypeIn number. Then, I would have my US number forward to my SkypeIn number which would then forward to my new local number which would transmit through my iPhone. That workaround should eliminate a huge amount of cost. And then I could use SkypeOut for international calls over a WiFi network. (I've heard Truphone might even work without the WiFi necessarily... any thoughts on that?) So, that's the general idea as I've been able to work it out. Here are the problems I need help with: 1. What exactly do I need to do to unlock the phone to put a sim card in it in Australia? And if I do this, will I be able to pop my AT&T sim card back into it on my return to the states? 2. Is Skype the best choice or is there another internet / VOIP carrier I should use? 3. Am I even sorta on the right track here or should I be doing something completely different? Thanks guys!